Digestion breaks large molecules into smaller ones which can be swallowed.
Salivary amylase is secreted by the pituitary gland.
Humans and
ruminants both feed on dead organic matter with an alimentary canal.
Once in the nephron the fluid is known as glamorous filtrate.
Ruminants - do not need to eat meat and poultry - live on pasteur
Oxygen acts as a used electron acceptor.
(Experimental
precaution in photosynthesis investigation)
You must leave the pond
with the light shining on it for 10-15 minutes.
Photolysis is (a) the
splitting of light (b) hydrolysis of water.
(Problems with
GM plants)
Herbicides might become resistant to plants.
Consumers may gain resistance.
Villi absorb broken up molecules
into the blood stream.
The pesticide kills the spider mite but they can
still reproduce.
The biological control agent illuminates the
pest.
Disadvantages:
Pigs use up their eggs faster.
Hormone treatment may affect piglets born in a negative way.
The percentage of the cow becoming pregnant is low.
The donor cow's embryos
died as the recipient cow was not ready to fertilise it.
Advantages:
A bull can be hired
All sows can be mated at the same time
Oestrus prevents any more eggs from being released.
FSH simulates
the ovaries.
FSH directs the egg to develop follicles
Pituitary
is responsible for the secretion of sex cells (gametes).
Other hormones
are made in the interior of the pituitary gland.
This causes the
Graafian follicle to be released.
First the fungus is put into a
fermenter, then boiled at its optimum temperature.
Light can affect
photosynthesis as it is converted into energy.
Light intensity was an
inflicting variable.
Sunken stomata draw up water from deep in the
ground.
Maize is grown in preference to wheat to increase both the rates
of photosynthesis and temperature.
Description of Semi-conservative
replication
Because it's a copy of itself and it's reduced to half,
then the DNA is doubled.
DNA is originally diploid, then it halves in
number to become haploid then the DNA replicates to become diploid again.
When the venom is introduced to the horse's blood the antibodies are able to recognise that the venom is dangerous.
An antigen recognises an
invading antibody.
The artificial gene may be upside down in the
molecule, rather than the right way up, as in the natural gene.